Summary:
Ref T8510. We had two issues with mixed-case result sorting, like typing `@joe` to match user `Joe`.
- The fallback sort was not normalized properly, so "J" could sort after "j". Instead, normalize values for sorting.
- The `prefix_hits` and older `priority_hits` mechanisms were competing destructively. The `prefix_hits` mechanism completely replaces the `priority_hits` mechanism. Instead, use only the `prefix_hits` mechanism.
Test Plan:
- Copied results for "joe" from WMF.
- Hard-coded the controller to return them.
- Searched for `@joe`.
- After patches, first hit is user "Joe".
Reviewers: chad
Reviewed By: chad
Maniphest Tasks: T8510
Differential Revision: https://secure.phabricator.com/D16826
9a10413dbc